this happens in visual studio 2012 when pressing Ctrl-C on any text or code. it started happening after i installed Web Essentials Extension (although i don't think it is causing it)... even after removing it the error did not disappear.
any help is appreciated. thanks.
I had the same problem after immediately install "Productivity Power Tools 2012". Try to remove some extensions and see if works. Sorry for absence of details, this worked for me.
User contributions licensed under CC BY-SA 3.0